    /* @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap'); */

    .big {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 16px;
        color: #ffffff;
        background: linear-gradient(160deg, #f3e7e9 0%, #e3eeff 110%);
        font-family: 'Poppins', sans-serif;
        margin: 0;
        width: 100vw;
    }

    .container {
        background-color: rgba(255, 255, 255, 0.82);
        padding: 40px;
        border-radius: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        animation: fadeIn 0.8s ease-in-out;
        position: relative;
        width: 420px;
        height: 400px;
        margin: 0 auto;
        border-radius: 10px;
        box-sizing: border-box;
        color: #1677ff;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    h2 {
        text-align: center;
        color: #156eea;
        font-size: 38px;
        letter-spacing: 2px;
        margin-top: -25px;
        margin-bottom: 20px;
        font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    }

    .item {
        height: 53px;
        border-bottom: 1px solid #1836bbde;
        margin-bottom: 40px;
        position: relative;
        color: #1667da;
    }

    .item input {
        width: 100%;
        height: 100%;
        padding-top: 20px;
        font-size: 16px;
        box-sizing: border-box;
        color: #156eea;
    }

    .item label {
        position: absolute;
        font-size: 17px;
        left: 2px;
        top: 27px;
    }

    .animated-class {
        animation: focusAnimation .6s ease-in-out;
        animation-fill-mode: forwards;
        /* 保持动画效果不变 */
    }

    @keyframes focusAnimation {
        100% {
            top: 17px;
            font-size: 13px;
        }
    }

    input {
        width: 88%;
        padding: 15px 0px 15px 0px;
        margin: 15px 15px;
        border: none;
        font-size: 16px;
        transition: background-color 0.3s ease;
        background: transparent;
        border: 0;
        outline: none;

    }

    button {
        margin-top: 10px;
        width: 100%;
        padding: 10px;
        background-color: #186be0;
        color: #fff;
        border: none;
        border-radius: 10px;
        cursor: pointer;
        font-size: 17px;
        font-weight: 600;
        transition: transform 0.3s ease;
        letter-spacing: 2px;
    }

    button:hover {
        transform: scale(1.05);
    }

    .forgot-password {
        text-align: right;
        font-size: 14px;
        margin-top: 5px;
    }

    .conversion {
        text-align: center;
        margin-top: 15px;
        padding-top: 5px;
        color: #1a34a8de;
        font-size: 14px;
        cursor: pointer;
    }

    a {
        text-decoration: none;
        color: #1a34a8de;
    }